Potassium Hydroxide

Provide appropriate exhaust ventilation at places where dust is formed.Conditions for safe storageStore in cool place. Keep container tightly closed in a dry and well-ventilated place.Absorbs carbon dioxide (CO2) from air.Air sensitive. strongly hygroscopic8. EXPOSURE CONTROLS/PERSONAL PROTECTIONPersonal protective equipmentRespiratory protectionWhere risk assessment shows air-purifying respirators are appropriate use a full-face particle respiratortype N100 (US) or type P3 (EN 143) respirator cartridges as a backup to engineering controls. If therespirator is the sole means of protection, use a full-face supplied air respirator. Use respirators andcomponents tested and approved under appropriate government standards such as NIOSH (US) or CEN(EU).Hand protectionThe selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and thestandard EN 374 derived from it.Handle with gloves.Eye protectionFace shield and safety glassesSkin and body protectionChoose body protection according to the amount and concentration of the dangerous substance at thework place.Hygiene measuresHandle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and atthe end of workday.9. PHYSICAL AND CHEMICAL PROPERTIESAppearanceFormflakesSafety datapH 13,5Melting point 361 °CBoiling point 1.320 °CFlash pointIgnition temperatureLower explosion limitUpper explosion limitno data availableno data availableno data availableno data availableVapour pressure 1 hPa at 719 °C1 hPa at 714 °CDensityWater solubility2,044 g/cm3soluble10. STABILITY AND REACTIVITYChemical stabilityHeat of solution is very high, and with limited amounts of water, violent boiling may occur Stable underrecommended storage conditions.Sigma-Aldrich - 484016 Page 3 of 5